Configuration of the Buzzer Output | Fujitsu F202RA, MB89202

CHAPTER 15 BUZZER OUTPUT

15.2Configuration of the Buzzer Output

The buzzer output consists of the following two blocks:

•Buzzer output selector

•Buzzer register (BZCR)

■Block Diagram of the Buzzer Output

Figure 15.2-1 Block Diagram of Buzzer Output

			Internal data bus
	BZCR
				BZ2	BZ1	BZ0
						Buzzer enable signal
		2	13/F			Selector
			CH			Selector
		2	12/F	Buzzer output		output
	From time-base timer	2	CH	selector		Pin
	From time-base timer	2	11/F	selector		Pin
			CH
		2	10/F			P37/BZ/PPG
			CH
FCH	: Oscillation frequency

●Buzzer output selector

The buzzer output selector is a circuit for selecting one of the four frequencies (square waves) output from the time-base timer. The buzzer register (BZCR) sets it.

●Buzzer register (BZCR)

The buzzer register (BZCR) is a register for setting the buzzer output frequency and enable the buzzer output. When the BZCR register sets an output frequency (other than 000B), the buzzer output is enabled so that the P37/BZ/PPG pin automatically becomes the buzzer output (BZ) pin. Even if the PPG pin has been enabled, the BZ pin has higher priority.

341

F202RA, MB89202 specifications

The Fujitsu MB89202 and F202RA microcontrollers are part of the 16-bit microcontroller family, renowned for their robust performance and versatility in a variety of embedded system applications. These devices are tailored for high-efficiency operation across diverse industries, including automotive, consumer electronics, and industrial automation.

One of the main features of the MB89202 is its powerful CPU core, which operates at a clock speed of up to 20 MHz. This enables the microcontroller to perform complex calculations and consumer-grade applications seamlessly. The architecture is designed to handle multiple tasks effectively, making it suitable for real-time operations.

Memory capacity is a vital characteristic of the MB89202, featuring on-chip RAM and ROM configurations. The microcontroller can accommodate different memory variants, providing developers with flexibility in memory allocation based on their application requirements. This adaptability facilitates applications ranging from simple control systems to complex data processing tasks.

The F202RA variant extends the capabilities of the MB89202 by integrating advanced peripheral functions. It includes built-in timers, A/D converters, and serial communication interfaces, which are essential for interfacing with other hardware components or sensors. The availability of these peripherals reduces the need for additional external circuits, thus contributing to a more compact and cost-effective design.

In terms of power management, the MB89202 series employs advanced power-saving technologies. The microcontroller offers various low-power modes, enabling devices to conserve energy during idle times, making it highly suitable for battery-operated applications. This characteristic not only enhances the efficiency of devices but also extends their operational lifespan.

Moreover, the Fujitsu MB89202 series incorporates robust protection features, including watchdog timers and failure detection mechanisms. These safety features ensure reliable operation in critical systems, making them a preferred choice in applications where failure is not an option.

The MB89202 and F202RA microcontrollers also support a range of development tools and environments, including integrated development environments (IDEs) and software libraries, which facilitate rapid application development. With these tools, developers can efficiently prototype, debug, and optimize their applications.

In summary, the Fujitsu MB89202 and F202RA microcontrollers stand out with their efficient performance, extensive memory options, integrated peripherals, and power-saving capabilities, making them ideal for a wide array of embedded applications. Their reliability and robustness further enhance their attractiveness for designers seeking advanced microcontroller solutions.

Fujitsu F202RA, MB89202 manual Configuration of the Buzzer Output, Buzzer output selector

Models: F202RA MB89202

CHAPTER 15 BUZZER OUTPUT

15.2Configuration of the Buzzer Output

Figure 15.2-1 Block Diagram of Buzzer Output

BZCR

BZ2

BZ1

BZ0

●Buzzer output selector

F202RA, MB89202 specifications